Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultralow-temperature sintered modified molybdenum-based microwave dielectric ceramic and preparation method thereof
The invention discloses an ultralow-temperature sintered modified molybdenum-based microwave dielectric ceramic and a preparation method thereof, and belongs to the technical field of microwave dielectric ceramic production, the raw materials of the modified molybdenum-based microwave dielectric ceramic are Al2O3, MoO3, Li2CO3 and V2O5, the chemical formula of the modified molybdenum-based microwave dielectric ceramic is xAl2Mo3O12-(1-x) LiMoVO6, x = 0.01-0.02, and the average particle size of the modified molybdenum-based microwave dielectric ceramic is 100-200 nm. The preparation method of the modified molybdenum-based microwave dielectric ceramic comprises the following steps: preparing materials; carrying out ball milling, drying, sieving and pre-sintering; performing batching, ball milling, drying and granulation again; and carrying out compression molding, glue discharging and heat preservation to prepare the ultralow-temperature sintered modified molybdenum-based microwave dielectric ceramic. According to the invention, the raw material powder of the Al2Mo3O12 system is introduced into the raw material powder of the LiMoVO6 system to form a two-phase coexistence system, so that the sintering temperature of the Al2Mo3O12-based ceramic is greatly reduced while the temperature stability of resonance frequency is improved, and finally, the system realizes excellent microwave dielectric properties at a lower sintering temperature (600 DEG C).
本发明公开了一种超低温烧结的改性钼基微波介质陶瓷及其制备方法，属于微波介质陶瓷的生产技术领域，改性钼基微波介质陶瓷的原料为Al2O3、MoO3、Li2CO3和V2O5，其化学式为xAl2Mo3O12‑(1‑x)LiMoVO6，x＝0.01～0.02；改性钼基微波介质陶瓷的制备方法，包括以下步骤：配料；球磨，烘干，过筛，预烧；再次配料，球磨，烘干，造粒；压制成型，排胶，保温，制得超低温烧结的改性钼基微波介质陶瓷。本发明将LiMoVO6体系的原料粉体中引入Al2Mo3O12体系的原料粉体，形成两相共存体系，在提高谐振频率温度稳定性的同时仍大幅降低了Al2Mo3O12基陶瓷的烧结温度，最终该体系在更低烧结温度(600℃)下实现了优异微波介电性能。
Ultralow-temperature sintered modified molybdenum-based microwave dielectric ceramic and preparation method thereof
The invention discloses an ultralow-temperature sintered modified molybdenum-based microwave dielectric ceramic and a preparation method thereof, and belongs to the technical field of microwave dielectric ceramic production, the raw materials of the modified molybdenum-based microwave dielectric ceramic are Al2O3, MoO3, Li2CO3 and V2O5, the chemical formula of the modified molybdenum-based microwave dielectric ceramic is xAl2Mo3O12-(1-x) LiMoVO6, x = 0.01-0.02, and the average particle size of the modified molybdenum-based microwave dielectric ceramic is 100-200 nm. The preparation method of the modified molybdenum-based microwave dielectric ceramic comprises the following steps: preparing materials; carrying out ball milling, drying, sieving and pre-sintering; performing batching, ball milling, drying and granulation again; and carrying out compression molding, glue discharging and heat preservation to prepare the ultralow-temperature sintered modified molybdenum-based microwave dielectric ceramic. According to the invention, the raw material powder of the Al2Mo3O12 system is introduced into the raw material powder of the LiMoVO6 system to form a two-phase coexistence system, so that the sintering temperature of the Al2Mo3O12-based ceramic is greatly reduced while the temperature stability of resonance frequency is improved, and finally, the system realizes excellent microwave dielectric properties at a lower sintering temperature (600 DEG C).
本发明公开了一种超低温烧结的改性钼基微波介质陶瓷及其制备方法，属于微波介质陶瓷的生产技术领域，改性钼基微波介质陶瓷的原料为Al2O3、MoO3、Li2CO3和V2O5，其化学式为xAl2Mo3O12‑(1‑x)LiMoVO6，x＝0.01～0.02；改性钼基微波介质陶瓷的制备方法，包括以下步骤：配料；球磨，烘干，过筛，预烧；再次配料，球磨，烘干，造粒；压制成型，排胶，保温，制得超低温烧结的改性钼基微波介质陶瓷。本发明将LiMoVO6体系的原料粉体中引入Al2Mo3O12体系的原料粉体，形成两相共存体系，在提高谐振频率温度稳定性的同时仍大幅降低了Al2Mo3O12基陶瓷的烧结温度，最终该体系在更低烧结温度(600℃)下实现了优异微波介电性能。
Ultralow-temperature sintered modified molybdenum-based microwave dielectric ceramic and preparation method thereof
超低温烧结的改性钼基微波介质陶瓷及其制备方法
XIONG ZHE (Autor:in) / GAO XIUHUA (Autor:in) / YAO QIANG (Autor:in) / LIU BOTAO (Autor:in) / YANG YUANBO (Autor:in)
12.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2015
Ultralow-temperature sintered microwave dielectric material and preparation method thereof
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2022